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Astronomy Practice Test

52 Questions
Astronomy Practice Test

A practice test for 8th grade astronomy!

Questions and Answers
  • 1. 
    The first part of this chart is a/an _____________.
  • 2. 
    The second part is a/an __________.
  • 3. 
    The third part is a/an __________.
  • 4. 
    The fourth part is a/an __________.
  • 5. 
    The fifth part is a/an __________.
  • 6. 
    The sixth part is a/an __________.
  • 7. 
    The seventh part is a/an __________.
  • 8. 
    The ninth part is a/an __________.
  • 9. 
    The tenth part is a/an __________.
  • 10. 
    The eleventh part is a/an __________.
  • 11. 
    Which side of the chart is for low mass stars?
    • A. 

      The bottom

    • B. 

      Both

    • C. 

      Neither

    • D. 

      The top

  • 12. 
    • A. 

      The bottom

    • B. 

      Both

    • C. 

      Niether

    • D. 

      The top

  • 13. 
    As the protostar contracts, the core temperature reaches 10,000,000 degrees c, and ______ begins, causing it to become a star.
  • 14. 
    What color is a low to medium-mass star?
    • A. 

      Blue

    • B. 

      Yellow

  • 15. 
    What color is a high-mass star?
    • A. 

      Blue

    • B. 

      Yellow

  • 16. 
    What two things to fusion create?
    • A. 

      Carbon and helium

    • B. 

      Carbon and radient energy

    • C. 

      Oxygen and helium

    • D. 

      Radient energy and helium

    • E. 

      Radient energy and oxygen

  • 17. 
    Stars expand because gravity balences out the energy production.
    • A. 

      True

    • B. 

      False, stars don't expand.

    • C. 

      False, stars expand because gravity doesn't balence out the energy production.

  • 18. 
    What is a hot and dense core of matter remains?
    • A. 

      Black dwarfs

    • B. 

      Supernovas

    • C. 

      White dwarfs

    • D. 

      Stars

  • 19. 
    What is a supernova?
    • A. 

      A stage of star causing the star to contract

    • B. 

      An explosion that blows the star apart

  • 20. 
    What does a white dwarf become when it stops glowing?
    • A. 

      A nova

    • B. 

      A black dwarf

    • C. 

      A nebula

  • 21. 
    Often, a white dwarf will not cool quietly, it will have repeated explosions called __________.
  • 22. 
    A high-mass star ends its cycle by becoming a...
    • A. 

      Neutron star or black whole

    • B. 

      A white dwarf or black dwarf

    • C. 

      A black dwarf or a black hole

    • D. 

      A neutron star or a white dwarf

  • 23. 
    Compare and contrast the two types of telescopes.
  • 24. 
    A radio telescope is a ______.
  • 25. 
    What type of telescope makes the best large telescopes?
  • 26. 
    What color star is our sun?
    • A. 

      Blue

    • B. 

      Red

    • C. 

      Yellow

    • D. 

      Violet

  • 27. 
    What is the temperature of our sun? (in celcius of course)
    • A. 

      3000

    • B. 

      5000

    • C. 

      2000

    • D. 

      100

  • 28. 
    Hottest stars are 20,000 degrees and are
    • A. 

      Red

    • B. 

      Blue

    • C. 

      Green

    • D. 

      Violet

    • E. 

      White

  • 29. 
    Describe apparent and actual motion.
  • 30. 
    Circumpolar stars are
    • A. 

      Stars that are far away from the star Polaris, and therefore are seen all year round.

    • B. 

      Stars that are close to the star Polaris, and therefore are seen all year round.

    • C. 

      Nebulas that are formed near the star Polaris.

    • D. 

      Stars that are named after Polaris.

  • 31. 
    How can we tell tgat stars are moving?
  • 32. 
    Stars moving towards the earth have ________ shift because the wavelengths are smaller.
    • A. 

      Red

    • B. 

      Blue

    • C. 

      Violet

    • D. 

      White

  • 33. 
    Distances in space are measureid in light years which is _________ km/sec.
    • A. 

      300000

    • B. 

      200000

    • C. 

      100000

    • D. 

      30000

  • 34. 
    It takes ____ minutes for light to get from the sun to our earth.
  • 35. 
    Explain parallax.
  • 36. 
    Name the two things that the visibility of a star depends on.
    • A. 

      Distance from the earth and size

    • B. 

      Brightness and size

    • C. 

      Temperature and distance from the earth

    • D. 

      Distance from the earth and brightness

  • 37. 
    How bright a star appears when viewed from earth is called it's __________.
  • 38. 
    The dimmeststars have low # aooarebt magnitutes.
    • A. 

      True

    • B. 

      False

  • 39. 
    The sun's apparent magnitude is ________.
  • 40. 
    _____________ is how bright stars would appear if they were all the same distance frrom the earth.
  • 41. 
    Is the sun's absolute magnitude more or less than it's apparent magnitude?
    • A. 

      Less, it would be moved further away.

    • B. 

      More, it would be moved further away.

    • C. 

      Less, it would be moved closer.

    • D. 

      More, it would be moved closer.

  • 42. 
    In the H-R diagram that is attached, in what two ways are the stars classified?
    • A. 

      Temperature, absolute magnitude

    • B. 

      Brightness, temperature

    • C. 

      Size, brightness

    • D. 

      Temberature, size

  • 43. 
    In the main sequence, the ________ increases as the temperature increases.
  • 44. 
    Why are white dwarfs and supergiants exceptions to the main sequence?
  • 45. 
    Put the types of light waves in order based on size and give a brief description of each.
  • 46. 
    The instrument that separates visible light into its wavelengths is a
    • A. 

      Telescope

    • B. 

      Spectroscope

    • C. 

      Sunglasses

  • 47. 
    Red has the longest wavelength and _____ has the shortest.
  • 48. 
    Each element, when heated, emites energy at a specific wavelengh. They only produce part of the sprectrum. This is called a
  • 49. 
    Why do we care what colors we see through the spectroscope?
  • 50. 
    What is inertia?
    • A. 

      The tendancy of an object in motion to continue in motion in a straight line unless affected by an outside force.

    • B. 

      The force that attracts objects towards eachother.

  • 51. 
    Perihelion is the point in the earth;s orbit when it is furthest from the sun.
    • A. 

      True

    • B. 

      False

  • 52. 
    Describe why we have seasons and the two things that this causes.